Spigot 1.11 with SilkSpawners build off spigot page
Updated Spigot tonight and got Build #374
Same issue still
also Build #374 doesnt report version number when /ss help is called (like the changes say it will)

You have to delete the localization.yml file in order to get the updated string which supports version placeholder.

I need a reproducible how to, to be able to solve the issue. In 99% of the cases it's another plugins error, so please try to disable them one by one and if you have found the culprit, please report it.

Closing due to lack of response. If the error still occurs, please create a new ticket and follow the issue template

Apologies, forgot all about this. Turned out to be another plugin that could manage spawners (CMI Content Management Interface), the functionality was added on an update and i didnt spot it. Disabled it in their config to solve

Thanks for the update - it's always quite helpful to know which plugins conflict. Glad you solved it.